Selected answers from the Dumb SEO Questions Facebook & G+ community.
Aamir Siddiqui: What is the difference between 32665 and 40404 and how they work on mobile networks?
Dave Elliott: aren't these the facebook post to and twitter(?) post to mobile numbers or something? I seem to remember using 32655 in the days before my phone could deal with facebook.
Rahul Gupta: On Twitter and Facebook, the short code refers to a 5-digit phone number that people use to send and receive tweets by SMS text messages on mobile phones. In the United States, #Facebook – 32665 #Twitter – 40404
Edwin Jonk: From the expert panel in this weeks SEO Questions hangout on air on 00:14:41 into the YouTube video: https://dumbseoquestions.com/q/what_is_the_difference_between_32665_and_40404_and_how_do_they_work_on_mobile_networks